Seam-spacer for sewing-machines.



C. MONEIL.

SEAM SPACER FOR SEWING MACHINES.

APPLICATION FILED MAY 11, 1907.

1,109,445, f Patented Sept.1,1914.

IL- "1w WERE ful Improvements CHESTER MONEIL, OF CHICAGO, ILLINOIS, ASSIG-NOR TO UNIONSPECIAL MACHINE COMPANY, OF CHICAGO, ILLINO IS, A COBIP ORATIONOF ILLINOIS.

SEAM-SPAGER FOR SEWING-MACHIIIES.

Specification of Letters Patent.

Patented s t. 1,1914.

Application filed. May 11, 190?. Serial No. 373,070.

To all whom, it may concern I Be it known that I, CHESTER MGNEIL, a citizen of the United States, residing at Chicago, in the county of Cook, Stateof Illinois, have invented certain new and usein Seam-Spacers for Sewing-Machines, of which the following is a description, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in sewing machines having stitching. elements so disposedas to form spaced lines of stitching, and more especially to a sewing machine of this character which includes devices for forming tucks.

An object of the invention is to provide means whereby lines of stitching may be formed which in the finished article .are a greater distance apart than the distance be tween the stitching elements.

. A further object of the invention is to provide devices cooperating with the stitching elements in a machine of the above character, whereby spaced tucks may be simultaneously formed which tucks will be greater distance apart in the finished article than the distance between the stitching elements.

A further object o f-the invention is to provide devices of theabove character which include means for adjusting the distance between the sitched tucks.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

In the'drawings which show an embodiment of m invention Figure 1 is'a Sectional view through the presser foot and throat plate embodying my invention. Fig. 2 is a top plan view of a presser foot'and the work support with'the invention applied thereto. Fig. .3 is a front plan view. Fig. 4. is a sectional detail showing the relativeposition of the fabric inmy improved seam spacer when the machine is operating to form spaced. tucks. Fig. 5 is a detail partly in sectionshowing the relation of the needles and loopers to the tack forming members.

The invention, as illustrated in the draw-- ings, is applied to a presser foot for making tucks in the fabric. Said presser foot 1 is provided with grooves 2, 3, in the face thereof which cooperate with ribs or fins 4, 5, respectively, mounted on the throat plate of the machine. These grooves and ribs are arranged parallel and extend beyond the needle openings 6, 7 to the cut away portions 8, 9, in rear of the needle opening. As the fabric passes beneath the presser foot and over the ribs or fins, it will be formed into tucks which are secured by suitable stitch forming mechanism preferably comprising sets of needles, each set.

having a loopr which operates to secure the stitches together on the under side of the fabric and thus secure the tuck. After the tuck is formed, the inclined rear portions of the presser foot formed by the cut away portions 8 and 9, operate to turn down the tucks flat upon the fabric. This presser foot is the same as that shown in the patent to R. G. Woodward and C. McNeil, 821774, granted May 29, 1906, and forms no part of the present invention.

By the above construction, it will be noted that parallel tucks may be formed in a fabric, but that the distance between said tucks is necessarily the distance between the ribs on the throat plate. In order to adjust the distance between the tucks without substituting another presser foot and adjusting the distance between the needles, I have provided an adjustable rib 10, which, as shown in the drawing, is carried by the presser foot. Said presser foot is provided with a groove 11 centrally thereof in which the rib 10. is placed. Said rib 10 hasfixed thereto posts 12 and 13,'which extend upa ward through suitable openings in the presser foot. .A plate 14, having openings ing the posts 12 and 13 is bored out to receive the springs 15 and 16. An adjusting screw 17 passes through the and is threaded into the presser foot.

It will be noted from the above construction that when the screw 17 is turned in,

plate 14 The throat plate or work support 18 is provided with a groove 19 WhlCll receives the rib or fin 10. When the material to be operated upon is placed beneath the presser foot, the ribs 4 and 5 will form tucks in the material which tucks will be stitched as they pass to the needles of the machine. The ma terial between the tucks is bent downward by the rib or fin 10 into the groove in the throat plate and it will be obvious that when saidfin or rib 10 is adjusted so as to extend a greater or lesser distance into'the groove in the throat'plate, more or less of the material will be taken up by said rib and by the adjustment of this rib .or fin, therefore, the distance between tucks may bevaried.

It is obvious that the rib or fin may be placed on the throat plate and the groove formed in the presser foot. I, however, prefer to mount the rib on the presser foot for the reason that the adjusting screw is in a more convenient position for access in adjusting the position of the rib.

It is obvious that my adjustable rib for varying the distance between tucks may also be used for varying the distance between lines of stitching, where, for example, it is desired to space the rows of stitches a greater distance than the distance between the.

needles of the machine.

It is obvious that the minor changes in the details of construction may be made without departing from the spirit of my invention.

Having thus particularly described my invention what I claim as new and desire to secure by Letters Patent is I 1. The combination with a plurality o needles and complementary stitch forming the tucks.

mechanism of means cofiperating therewith to form and stitch simultaneously a lurality of tucks and means for varying t e distance between the lines of stitching forming j 2. The combination with a plurality of .needles and complementary stitch forming mechanism and means cooperating there'- with for forming independent stitched tucks and adjustable means located between said tuck forming devices for varying the distance between said tucks.

3. The combination with a plurality of pairs of needles, a presser foot, a work support means cooperating with the needles to form spaced tucks, a rib or fin, carried by one, of said parts and located betweensaid pairs of needles, the other of said parts having a groove for receiving said rib or fin and means for adjusting the position of said rib or fin whereby the distance between the tucks may be varied.

4. The combination with a plurality of needles and complementary stitch forming mechanism of a resser foot,"a rib carried by said presser oot, means for adjusting said rib, and awork support having a groove to receive said rib.

5. 'A presser foot having spaced grooves formed in the lower face thereof, for receiving tucks, a rib connected to the presser foot and located between said grooves and means for adjusting the amount of projection of the rib beneath the presser foot.

6. A presser foot having spaced grooves on its under face'for receiving tucks, and a groove intermediate said spaced grooves for receiving a projecting rib, a rib located in said groove and projecting below the under face of the presser foot, and means for adjusting the amount of projection of said rib.

7. In a sewing machine, including a presser foot and a cooperating throat plate, said throat plate being provided with a groove, a fin carried by said presser foot and registering with said groove in said throat plate, and means to adjust the overlapping of said fin in said groove.

8. In a sewin machine, thecombination of a plurality o needles, a presser foot and a: cooperating throat plate, said throat plate having a groove therein, located between the needles, said presser foot having a fin mounted thereon and registeringtwith said groove in the throat plate, and means for adjusting the overlapping of the fin in said groove. 9. A presser foot haying a groove in its under face, a rib located in said groove, guiding posts attached to said rib and extending through said presser foot and an adjusting screw for adjusting said rib.

10. A presser foot having a groove in its under face, a rib located in said groove, guiding posts attached to said rib and extending through said presser foot, springs surrounding said guiding postsand normally holding said rib within said groove and an adjusting screw for moving said rib out of said groove.

11.. A presser foot having a groov in its under face, a rib mounted in said gro ve, guiding posts attached to said rib and extending through said presser foot, a plate connecting the upper end of said posts, springs intermediate said plate and the upper face ofsaid presser foot and an adjustg screwpassing through said plate into sald presser foot.

. 12. The combination of a presser foot and a work support, one ofsaid parts having a roove, a rib mounted in said groove,;means needles and mechanism cooperating there said tucks a greater distance than the dism with to simultaneously form a plurality of tance between said needles and for varying tucks, of means for spacing said, tucks a said distance greater distance than the distance between In testimon whereof I aflixJ my signature,

said needles. in presence 0 two witnesses.

14:. The combination with a plurality of I CHESTER McNEIL. needles and mechanism cooperating there- "Witnesses: with 'to simultaneously dorm a lurality of EUGENE G. Mason, tucks of an adjustable means 01- spacing WARD E. WRIGHT. 

